Who doesn't like free things?
Something I always appreciated was free cell phone backgrounds. Sometimes you just want to add a little flair to your phone. Googling what you want isn't always helpful. Along my journey to places near and far, I found found little gems here and there that have become my own personal phone background. People asked where I got it from, thus the Background sharing began.
All I ask in return is that you a) let people know where you got your background from if they ask and b) simply enjoy them!